Indigo 1.38.0

Released 2026-02-20

Features

  • 3227 Introducing Copolymer S-group type

  • 3272 SDF files for library/monomer information

  • 3196 Support formation of circular structures in flex mode - PoC

Bugfixes and improvements

  • 3239 System doesn’t save monomer expand/collapse state in Mol v3000 for user created monomers (they always come in collapsed state)

  • 3261 indigoSaveCdxml doesn’t support reaction molecules

  • 3269 System ignored HELM alias for bases on monomer load to Library

  • 3256 Metals loaded from cdxml are always represented with hydrogens

  • 3237 Stackoverflow iterate components

  • 3277 System adds broken Preset to the library (part2)

  • 3278 System doesn’t allow to add monomers with the same structure but different names (part2)

  • 3286 CHEMBUGS-64 Automapping fails to guard against contradictory reaction center annotation, corrupts future structure export data

  • 3297 Random ‘$$$$V2.0’ empty return from conversion to HELM

  • 3293 Library update works wrong if we use empty SDF file

  • 3292 Save to SDF v2000 works wrong for created monomers

  • 3291 Layout works wrong

  • 3267 Export to sugar monomer to AxoLabs error message is wrong

  • 3265 System should be able to load unknown monomer on any position

  • 3338 System losts stereo bonds on monomer load to Library

  • 3247 SVG/PNG: Export of any atom with Isotope (atomic mass) value set doesn’t work

Full Changelog: https://github.com/epam/Indigo/compare/indigo-1.37.0-rc.1…indigo-1.38.0